Hi everyone. Just apologize in advance for the questions I'll ask, 'cause probably done hundreds times. 1. I've got Windows8 original key fro my Uni. But I want to install Windows 8.1 from fresh. Is it gonna be valid? 2. let's say I find a key for the installation process. I don't wanna use any tools to activate, but like I was doing with 7 & co, i want to use KMS. Is that still valid: Code: slmgr.vbs -ipk xxxx-mykey slmgr /skms kmsserver slmgr.vbs -ato 3. If yes, what kms server available for 8.1? Thanks a lot.